export default class FileManager {
    constructor(files = [], current = null) {
        this.files = files
        this.current = current || files[0]
    }
    add(file, callback) {

    }
    remove(file, callback){

    }
    switch(file, callback) {

    }
    //返回指定名称的文件
    get(name){

    }
    build() {

    }

}